alias.c: Fix comment typos.

	* alias.c: Fix comment typos.
	* builtins.c: Likewise.
	* cfg.c: Likewise.
	* df.c: Likewise.
	* dominance.c: Likewise.
	* dwarf2out.c: Likewise.
	* emit-rtl.c: Likewise.
	* expr.c: Likewise.
	* final.c: Likewise.
	* fold-const.c: Likewise.
	* gcse.c: Likewise.
	* genattrtab.c: Likewise.
	* genrecog.c: Likewise.
	* gensupport.c: Likewise.
	* ggc-zone.c: Likewise.
	* integrate.c: Likewise.
	* local-alloc.c: Likewise.
	* loop.c: Likewise.
	* recog.c: Likewise.
	* regmove.c: Likewise.
	* reg-stack.c: Likewise.
	* reorg.c: Likewise.
	* rtlanal.c: Likewise.
	* rtl.h: Likewise.
	* sched-ebb.c: Likewise.
	* simplify-rtx.c: Likewise.
	* toplev.c: Likewise.
	* varasm.c: Likewise.

From-SVN: r75475

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 185d63d4351d58272b5d98707263665d7144347a..95a1dcfee77af32ee8e828538494d8c8e62ba05a 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,34 @@
+2004-01-06  Kazu Hirata  <kazu@cs.umass.edu>
+
+       * alias.c: Fix comment typos.
+       * builtins.c: Likewise.
+       * cfg.c: Likewise.
+       * df.c: Likewise.
+       * dominance.c: Likewise.
+       * dwarf2out.c: Likewise.
+       * emit-rtl.c: Likewise.
+       * expr.c: Likewise.
+       * final.c: Likewise.
+       * fold-const.c: Likewise.
+       * gcse.c: Likewise.
+       * genattrtab.c: Likewise.
+       * genrecog.c: Likewise.
+       * gensupport.c: Likewise.
+       * ggc-zone.c: Likewise.
+       * integrate.c: Likewise.
+       * local-alloc.c: Likewise.
+       * loop.c: Likewise.
+       * recog.c: Likewise.
+       * regmove.c: Likewise.
+       * reg-stack.c: Likewise.
+       * reorg.c: Likewise.
+       * rtlanal.c: Likewise.
+       * rtl.h: Likewise.
+       * sched-ebb.c: Likewise.
+       * simplify-rtx.c: Likewise.
+       * toplev.c: Likewise.
+       * varasm.c: Likewise.
+
 2004-01-06  Kazu Hirata  <kazu@cs.umass.edu>
 
        * doc/install.texi: Fix typos.

diff --git a/gcc/alias.c b/gcc/alias.c
index e4485375975bf03b1b0567a4f65c29402f8fff13..584f565ad3a82b8705680e2b93e5ff66da449514 100644 (file)
--- a/gcc/alias.c
+++ b/gcc/alias.c
@@ -2386,7 +2386,7 @@ nonlocal_mentioned_p_1 (rtx *loc, void *data ATTRIBUTE_UNUSED)
       if (MEM_VOLATILE_P (x))
        return 1;
 
-    /* FALLTHROUGH */
+    /* Fall through.  */
 
     default:
       break;
@@ -2480,7 +2480,7 @@ nonlocal_referenced_p_1 (rtx *loc, void *data ATTRIBUTE_UNUSED)
       if (MEM_VOLATILE_P (x))
        return 1;
 
-    /* FALLTHROUGH */
+    /* Fall through.  */
 
     default:
       break;
@@ -2556,7 +2556,7 @@ nonlocal_set_p_1 (rtx *loc, void *data ATTRIBUTE_UNUSED)
       if (MEM_VOLATILE_P (x))
        return 1;
 
-    /* FALLTHROUGH */
+    /* Fall through.  */
 
     default:
       break;

diff --git a/gcc/builtins.c b/gcc/builtins.c
index df93f48238e6489ce5d91019af51ab991d841cb1..266039632f687aa56a15ee364733364469c25741 100644 (file)
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -4354,7 +4354,7 @@ expand_builtin_fputs (tree arglist, rtx target, bool unlocked)
            break;
          }
       }
-      /* FALLTHROUGH */
+      /* Fall through.  */
     case 1: /* length is greater than 1, call fwrite.  */
       {
        tree string_arg;

diff --git a/gcc/cfg.c b/gcc/cfg.c
index 96dac25d0ac540ef0c82e317fb2c3a7751d8b75c..fb1bce7a3a79309e38759dfbb15736bc82d5d614 100644 (file)
--- a/gcc/cfg.c
+++ b/gcc/cfg.c
@@ -334,7 +334,7 @@ cached_make_edge (sbitmap *edge_cache, basic_block src, basic_block dst, int fla
       if (flags == 0)
        return NULL;
 
-      /* FALLTHRU */
+      /* Fall through.  */
     case 0:
       for (e = src->succ; e; e = e->succ_next)
        if (e->dest == dst)

diff --git a/gcc/df.c b/gcc/df.c
index 96c8ad8dbd2c8be4afd9b92dcc8caa2b3baf33a2..63f6c7c82452b7f34889a02bfbc83fd898aec398 100644 (file)
--- a/gcc/df.c
+++ b/gcc/df.c
@@ -1006,7 +1006,7 @@ df_uses_record (struct df *df, rtx *loc, enum df_ref_type ref_type,
                                  insn, DF_REF_READ_WRITE);
                  break;
                }
-             /* ... FALLTHRU ...  */
+             /* Fall through.  */
            case REG:
            case PARALLEL:
            case PC:

diff --git a/gcc/dominance.c b/gcc/dominance.c
index 1b6c9fd8f4268370f5576ff474c015e683190903..9d691a3d07c8092239b7d9b16cc8310e9f546256 100644 (file)
--- a/gcc/dominance.c
+++ b/gcc/dominance.c
@@ -537,7 +537,7 @@ assign_dfs_numbers (struct et_node *node, int *num)
   node->dfs_num_out = (*num)++;
 }
 
-/* Compute the data neccesary for fast resolving of dominator queries in a
+/* Compute the data necessary for fast resolving of dominator queries in a
    static dominator tree.  */
 
 static void
@@ -659,7 +659,7 @@ set_immediate_dominator (enum cdi_direction dir, basic_block bb,
     dom_computed[dir] = DOM_NO_FAST_QUERY;
 }
 
-/* Store all basic blocks immediatelly dominated by BB into BBS and return
+/* Store all basic blocks immediately dominated by BB into BBS and return
    their number.  */
 int
 get_dominated_by (enum cdi_direction dir, basic_block bb, basic_block **bbs)

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index b765aefdc943afa77179753f78628ac5ca5a253c..60177f1c5151d9eaa284db796e67185940bea823 100644 (file)
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -8503,7 +8503,7 @@ loc_descriptor_from_tree (tree loc, int addressp)
          indirect_p = 1;
          break;
        }
-      /* FALLTHRU */
+      /* Fall through.  */
 
     case PARM_DECL:
       {

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 6558fa73fe95030cf20d15ab6f4516780769f293..cf491e87f01e6b2d5337f552ad4789c598d34e7d 100644 (file)
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -2876,7 +2876,7 @@ repeat:
              if (copied && len > 0)
                XVEC (x, i) = gen_rtvec_v (len, XVEC (x, i)->elem);
               
-              /* Call recsusively on all inside the vector.  */
+              /* Call recursively on all inside the vector.  */
              for (j = 0; j < len; j++)
                 {
                  if (last_ptr)

diff --git a/gcc/expr.c b/gcc/expr.c
index e873865c6c6a57a920da375ee414a5bcd3abf68f..b593a515bac29a9714a73ab1f6ec71dce1cc085d 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -5829,7 +5829,7 @@ safe_from_p (rtx x, tree exp, int top_p)
     case '<':
       if (!safe_from_p (x, TREE_OPERAND (exp, 1), 0))
        return 0;
-      /* FALLTHRU */
+      /* Fall through.  */
 
     case '1':
       return safe_from_p (x, TREE_OPERAND (exp, 0), 0);

diff --git a/gcc/final.c b/gcc/final.c
index 3310a40d6911389dfb22c89292ae4a0dc5b711ad..d3785fda1951fb1a5a4d13a398c15a3725f31a6d 100644 (file)
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -3779,7 +3779,7 @@ leaf_renumber_regs_insn (rtx in_rtx)
    calls into this file, i.e., dbxout_symbol, dbxout_parms, and dbxout_reg_params.
    Those routines may also be called from a higher level intercepted routine. So
    to prevent recording data for an inner call to one of these for an intercept,
-   we maintain a intercept nesting counter (debug_nesting). We only save the
+   we maintain an intercept nesting counter (debug_nesting). We only save the
    intercepted arguments if the nesting is 1.  */
 int debug_nesting = 0;
 

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 7a939c4966658545711035d13c1496bc819f3cde..fb9f037a6963c3a0e2f261e538b103155b893aaf 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -8425,7 +8425,7 @@ fold_checksum_tree (tree expr, struct md5_ctx *ctx, htab_t ht)
        case WITH_CLEANUP_EXPR: len = 2; break;
        default: break;
        }
-      /* FALLTHROUGH */
+      /* Fall through.  */
     case 'r':
     case '<':
     case '1':

diff --git a/gcc/gcse.c b/gcc/gcse.c
index 798437649cec3c9c1fbe8b116245371efa9b4f85..55f6d1bed720b26e87fd2034068760a9057e4fe3 100644 (file)
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -817,7 +817,7 @@ gcse_main (rtx f, FILE *file)
         partial redundancy elimination.  */
       free_gcse_mem ();
 
-      /* It does not make sense to run code hoisting unless we optimizing
+      /* It does not make sense to run code hoisting unless we are optimizing
         for code size -- it rarely makes programs faster, and can make
         them bigger if we did partial redundancy elimination (when optimizing
         for space, we use a classic gcse algorithm instead of partial

diff --git a/gcc/genattrtab.c b/gcc/genattrtab.c
index ccf82c68a2a1212a2bd9e947e116f26728478cdf..05f7d222e8b39e9de860334eb744690771dce816 100644 (file)
--- a/gcc/genattrtab.c
+++ b/gcc/genattrtab.c
@@ -1155,7 +1155,7 @@ check_attr_value (rtx exp, struct attr_desc *attr)
          have_error = 1;
          break;
        }
-      /* FALLTHRU */
+      /* Fall through.  */
 
     case IOR:
     case AND:

diff --git a/gcc/genrecog.c b/gcc/genrecog.c
index 208ea8e57f26ad87dddcfa4e56f706736c772c5d..467f96e0fc196d9c44af9960b13f13944e3c6c21 100644 (file)
--- a/gcc/genrecog.c
+++ b/gcc/genrecog.c
@@ -378,7 +378,7 @@ find_operand (rtx pattern, int n)
        case 'V':
          if (! XVEC (pattern, i))
            break;
-         /* FALLTHRU */
+         /* Fall through.  */
 
        case 'E':
          for (j = 0; j < XVECLEN (pattern, i); j++)
@@ -429,7 +429,7 @@ find_matching_operand (rtx pattern, int n)
        case 'V':
          if (! XVEC (pattern, i))
            break;
-         /* FALLTHRU */
+         /* Fall through.  */
 
        case 'E':
          for (j = 0; j < XVECLEN (pattern, i); j++)
@@ -812,7 +812,7 @@ add_to_sequence (rtx pattern, struct decision_head *last, const char *position,
         beyond the end of the vector.  */
       test = new_decision_test (DT_veclen_ge, &place);
       test->u.veclen = XVECLEN (pattern, 2);
-      /* FALLTHRU */
+      /* Fall through.  */
 
     case MATCH_OPERAND:
     case MATCH_SCRATCH:

diff --git a/gcc/gensupport.c b/gcc/gensupport.c
index fede14a513028510da61a22530895cce4bc04056..377b08d50a6f76e4e020082a24dba608afa5c0f2 100644 (file)
--- a/gcc/gensupport.c
+++ b/gcc/gensupport.c
@@ -512,7 +512,7 @@ collect_insn_data (rtx pattern, int *palt, int *pmax)
     case MATCH_OPERAND:
       i = n_alternatives (XSTR (pattern, 2));
       *palt = (i > *palt ? i : *palt);
-      /* FALLTHRU */
+      /* Fall through.  */
 
     case MATCH_OPERATOR:
     case MATCH_SCRATCH:
@@ -540,7 +540,7 @@ collect_insn_data (rtx pattern, int *palt, int *pmax)
        case 'V':
          if (XVEC (pattern, i) == NULL)
            break;
-         /* FALLTHRU */
+         /* Fall through.  */
        case 'E':
          for (j = XVECLEN (pattern, i) - 1; j >= 0; --j)
            collect_insn_data (XVECEXP (pattern, i, j), palt, pmax);
@@ -595,7 +595,7 @@ alter_predicate_for_insn (rtx pattern, int alt, int max_op, int lineno)
            XSTR (pattern, 2) = new_c;
          }
       }
-      /* FALLTHRU */
+      /* Fall through.  */
 
     case MATCH_OPERATOR:
     case MATCH_SCRATCH:

diff --git a/gcc/ggc-zone.c b/gcc/ggc-zone.c
index 5a7d6d447f552e8f11bfe77a595211d4cf01029b..b9ad7334655e563958d4b73de687ce7aff2fa88e 100644 (file)
--- a/gcc/ggc-zone.c
+++ b/gcc/ggc-zone.c
@@ -172,7 +172,7 @@ struct alloc_chunk {
    Similar with increasing max_free_bin_size without increasing num_free_bins.
 
    After much histogramming of allocation sizes and time spent on gc,
-   on a powerpc G4 7450 - 667 mhz, and an pentium 4 - 2.8ghz,
+   on a PowerPC G4 7450 - 667 mhz, and a Pentium 4 - 2.8ghz,
    these were determined to be the optimal values.  */
 #define NUM_FREE_BINS          64
 #define MAX_FREE_BIN_SIZE      256

diff --git a/gcc/integrate.c b/gcc/integrate.c
index f317627e487217b74e4f86d1fd0247df4bd140a4..d3e47a6a05517f4663be675a346f1f05045c0078 100644 (file)
--- a/gcc/integrate.c
+++ b/gcc/integrate.c
@@ -2090,7 +2090,7 @@ copy_rtx_and_substitute (rtx orig, struct inline_remap *map, int for_lhs)
       if (NOTE_LINE_NUMBER (orig) != NOTE_INSN_DELETED_LABEL)
        break;
 
-      /* ... FALLTHRU ...  */
+      /* Fall through.  */
     case CODE_LABEL:
       LABEL_PRESERVE_P (get_label_from_map (map, CODE_LABEL_NUMBER (orig)))
        = LABEL_PRESERVE_P (orig);

diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c
index f3caba4f6a6baddac95dca465aef57574386eaef..6524f6c795932b3f1ec049af63f896cd956f0aed 100644 (file)
--- a/gcc/local-alloc.c
+++ b/gcc/local-alloc.c
@@ -538,7 +538,7 @@ equiv_init_varies_p (rtx x)
       if (MEM_VOLATILE_P (x))
        return 1;
 
-      /* FALLTHROUGH */
+      /* Fall through.  */
 
     default:
       break;
@@ -603,7 +603,7 @@ equiv_init_movable_p (rtx x, int regno)
       if (MEM_VOLATILE_P (x))
        return 0;
 
-      /* FALLTHROUGH */
+      /* Fall through.  */
 
     default:
       break;
@@ -2412,7 +2412,7 @@ requires_inout (const char *p)
          if (REG_CLASS_FROM_CONSTRAINT (c, p) == NO_REGS
              && !EXTRA_ADDRESS_CONSTRAINT (c, p))
            break;
-         /* FALLTHRU */
+         /* Fall through.  */
        case 'p':
        case 'g': case 'r':
          reg_allowed = 1;

diff --git a/gcc/loop.c b/gcc/loop.c
index 0169dd05976c09040ba5d558c8266ad349e9b2bf..c0cf160a868f19e229e8b00901142c5e4cc01d4c 100644 (file)
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -2643,7 +2643,7 @@ prescan_loop (struct loop *loop)
                  loop_info->has_multiple_exit_targets = 1;
                }
            }
-         /* FALLTHRU */
+         /* Fall through.  */
 
        case INSN:
          if (volatile_refs_p (PATTERN (insn)))

diff --git a/gcc/recog.c b/gcc/recog.c
index f366e39c9a60171e00c3ef2b5382ceaed4f09b22..9f5c152082e86adb7377a08ab827b5f7cfa0d5df 100644 (file)
--- a/gcc/recog.c
+++ b/gcc/recog.c
@@ -1707,7 +1707,7 @@ asm_operand_ok (rtx op, const char *constraint)
              || (GET_CODE (op) == CONST_DOUBLE
                  && GET_MODE (op) == VOIDmode))
            break;
-         /* FALLTHRU */
+         /* Fall through.  */
 
        case 'i':
          if (CONSTANT_P (op)

diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c
index 228723b8ac5674a77e2f53917e0b87b5e59e5567..8ebae4be70c517776b297050aa4a3e6c47921331 100644 (file)
--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -1769,7 +1769,7 @@ subst_stack_regs_pat (rtx insn, stack regstack, rtx pat)
                if (GET_CODE (pat_src) != UNSPEC
                    || XINT (pat_src, 1) != UNSPEC_FNSTSW)
                  abort ();
-               /* FALLTHRU */
+               /* Fall through.  */
 
              case UNSPEC_FNSTSW:
                /* Combined fcomp+fnstsw generated for doing well with

diff --git a/gcc/regmove.c b/gcc/regmove.c
index c6c30d1070686eaf3b4f18b6a0acdb559d18dc33..d5b35cc1d4dbaff1eb6f43dbe7e53ddbd193b402 100644 (file)
--- a/gcc/regmove.c
+++ b/gcc/regmove.c
@@ -375,7 +375,7 @@ static int perhaps_ends_bb_p (rtx insn)
         very conservative.  */
       if (nonlocal_goto_handler_labels)
        return 1;
-      /* FALLTHRU */
+      /* Fall through.  */
     default:
       return can_throw_internal (insn);
     }

diff --git a/gcc/reorg.c b/gcc/reorg.c
index 46b665779800ce69811694180f33c90a234717dd..ec15a4fb6bc40b0aa59111a287675958e68021db 100644 (file)
--- a/gcc/reorg.c
+++ b/gcc/reorg.c
@@ -1621,7 +1621,7 @@ try_merge_delay_insns (rtx insn, rtx thread)
    If we are not careful, this routine can take up a significant fraction
    of the total compilation time (4%), but only wins rarely.  Hence we
    speed this routine up by making two passes.  The first pass goes back
-   until it hits a label and sees if it find an insn with an identical
+   until it hits a label and sees if it finds an insn with an identical
    pattern.  Only in this (relatively rare) event does it check for
    data conflicts.
 

diff --git a/gcc/rtl.h b/gcc/rtl.h
index 12c70509923ac6bfda1f6c1697e908f2576c2a97..d403dda195be46270998397d0bc5ecbe681da7c5 100644 (file)
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -1986,7 +1986,7 @@ struct cse_basic_block_data;
    N times that of a fast register-to-register instruction.  */
 #define COSTS_N_INSNS(N) ((N) * 4)
 
-/* Maximum cost of a rtl expression.  This value has the special meaning
+/* Maximum cost of an rtl expression.  This value has the special meaning
    not to use an rtx with this cost under any circumstances.  */
 #define MAX_COST INT_MAX
 

diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 0a0d4d4a51a42125e8b807eb05127a78fbfae817..059fe9e522b05e86ae6a33ee12342f18d707df5f 100644 (file)
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -99,7 +99,7 @@ rtx_unstable_p (rtx x)
       if (MEM_VOLATILE_P (x))
        return 1;
 
-      /* FALLTHROUGH */
+      /* Fall through.  */
 
     default:
       break;
@@ -189,7 +189,7 @@ rtx_varies_p (rtx x, int for_alias)
       if (MEM_VOLATILE_P (x))
        return 1;
 
-      /* FALLTHROUGH */
+      /* Fall through.  */
 
     default:
       break;

diff --git a/gcc/sched-ebb.c b/gcc/sched-ebb.c
index 2d4f125e62f2741631aeab426eaf69839eebe4f5..c553cddd18353937b7eaa655f74d92941566c33a 100644 (file)
--- a/gcc/sched-ebb.c
+++ b/gcc/sched-ebb.c
@@ -445,7 +445,7 @@ add_deps_for_risky_insns (rtx head, rtx tail)
                    prev = BB_END (bb);
                  }
              }
-           /* FALLTHRU */
+           /* Fall through.  */
          case TRAP_RISKY:
          case IRISKY:
          case PRISKY_CANDIDATE:

diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index ffa87cd785fc368b155f2409e8b0cc49aec281e0..10a9047d739418bcf6f9389d13b0f45e3658c1dd 100644 (file)
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -3148,7 +3148,7 @@ simplify_subreg (enum machine_mode outermode, rtx op,
             pretend this is actually an integer.  */
          innermode = mode_for_size (HOST_BITS_PER_WIDE_INT, MODE_INT, 0);
 
-         /* FALLTHROUGH */
+         /* Fall through.  */
        case CONST_INT:
          if (GET_CODE (op) == CONST_INT)
            val = INTVAL (op);

diff --git a/gcc/toplev.c b/gcc/toplev.c
index 6c4970a109de2a0eea16b184fd8f46665e7befab..51a5e56722ee15882cfabce5b043f86549f5e9fa 100644 (file)
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -2100,7 +2100,7 @@ rest_of_handle_stack_regs (tree decl, rtx insns)
 #if defined (HAVE_ATTR_length)
   /* If flow2 creates new instructions which need splitting
      and scheduling after reload is not done, they might not be
-     splitten until final which doesn't allow splitting
+     split until final which doesn't allow splitting
      if HAVE_ATTR_length.  */
 #ifdef INSN_SCHEDULING
   if (optimize && !flag_schedule_insns_after_reload)

diff --git a/gcc/varasm.c b/gcc/varasm.c
index 70c13bb6bd1a199433ed8fc40515c90895dd1440..3f5905ab397a013280455fff76bd70fe9083d97a 100644 (file)
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -2704,7 +2704,7 @@ decode_rtx_const (enum machine_mode mode, rtx x, struct rtx_const *value)
              break;
            case rvc_normal:
              value->un.du.exp = r->exp;
-             /* FALLTHRU */
+             /* Fall through.  */
            case rvc_nan:
              memcpy (value->un.du.sig, r->sig, sizeof (r->sig));
              break;
@@ -2764,7 +2764,7 @@ decode_rtx_const (enum machine_mode mode, rtx x, struct rtx_const *value)
                    break;
                  case rvc_normal:
                    d->exp = r->exp;
-                   /* FALLTHRU */
+                   /* Fall through.  */
                  case rvc_nan:
                    memcpy (d->sig, r->sig, sizeof (r->sig));
                    break;
@@ -3132,7 +3132,7 @@ output_constant_pool (const char *fnname ATTRIBUTE_UNUSED,
              || GET_CODE (XEXP (XEXP (x, 0), 0)) != LABEL_REF)
            break;
          tmp = XEXP (XEXP (x, 0), 0);
-         /* FALLTHRU */
+         /* Fall through.  */
 
        case LABEL_REF:
          tmp = XEXP (x, 0);